???????????????

????:?????????:???????????

2???10????????,?,??????????????????(?????????????????????)?????????,8?????????????????,????,??????????,??????

???,???,?3????????????????????,?????????700??????????????????????????????,?????98.2%?

????(????)???8???,??70???????????????????????????????52?????????,???20?????

????,????????????????2????????20???????1????????????????15???,?????????500???,??(??????????? ????????????)

??????:???????????